Indian Ocean ridge seismicity observed with a permanent hydroacoustic network

Details Indian Ocean ridge seismicity observed with a permanent hydroacoustic network Indian Ocean ridge seismicity observed with a permanent hydroacoustic network

Mar 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3206301h&link_type=abstract

Geophysical Research Letters, Volume 32, Issue 6, CiteID L06301

Physics

2

Oceanography: General: Ocean Acoustics, Seismology: Seismicity And Tectonics (1207, 1217, 1240, 1242), Seismology: Mid-Ocean Ridges, Geographic Location: Indian Ocean, Tectonophysics: Plate Boundary: General (3040)

Scientific paper

The distribution of earthquakes along the Indian Ocean ridge system between January 18 and October 20, 2003 is investigated using data from two hydrophone stations of the International Monitoring System's global network. Coherent array processing of earthquake-induced hydroacoustic T-waves is used to determine precise arrival times and back azimuths that allow automatic location of the earthquakes. We observed 4725 events throughout the Indian Ocean Basin. Here, we examine 1146 earthquakes from the Central and Southeast Indian Ridge. Source level estimates from the hydroacoustic signals indicate that the hydroacoustic network is at least one magnitude unit more sensitive than the seismic network for Indian Ocean ridge earthquakes. The seismicity primarily clusters at ridge transform offsets. Events are observed off the ridge axis near Boomerang and St. Pierre Seamounts, the active expression of the Amsterdam-St. Paul Hotspot. Seismic gaps are observed at several ridge segments with anomalous bathymetric highs.

Affiliated with

Also associated with

No associations

Rating

Indian Ocean ridge seismicity observed with a permanent hydroacoustic network does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Indian Ocean ridge seismicity observed with a permanent hydroacoustic network, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Indian Ocean ridge seismicity observed with a permanent hydroacoustic network will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1217659